MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The sample is a PDF file flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The primary malicious URL identified is https://ttraff.com/pify?keyword=java+collections+sort, which is part of a redirector infrastructure. The document body, though heavily obfuscated, contains this URL, suggesting it's the intended lure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.com/pify?keyword=java+collections+sort In PDF document text
- http://files.chatteriemainecoonroswell.com/uploads/1/3/1/4/131407164/munodigadomosugafo.pdfIn PDF document text
- http://files.greenwoodtoylibrary.org.au/uploads/1/3/1/8/131856330/3948853.pdfIn PDF document text
- http://files.7thgradescienceworld.com/uploads/1/3/0/8/130813144/kagawan.pdfIn PDF document text
- http://files.yoursalwayspdx.com/uploads/1/3/2/8/132815742/f10666d7793.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0433/0392/7973/files/dezinedutudekebup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1343/0686/files/fexumutaga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8779/7160/files/50810610263.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4592/0669/files/nagesasowakotirikelevimok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5633/9861/files/lataneza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2556/3799/files/kawosakilirugulesalagas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6858/8194/files/fozadodozadovenozivez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1796/0604/files/pifazexogugozelowize.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9900/4831/files/sepegogo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7274/8710/files/58301166878.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5099/0753/files/tewuvi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3985/7563/files/23353893415.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5071/9642/files/76923523532.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ca88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA88 | 4632 bytes |
SHA-256: d2da0f1a699d3235c3911993471830a7d34b6b71374841e53ce0a1b0a28b51d1 |
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font_01_sfnt_off0000da44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA44 | 15556 bytes |
SHA-256: 0a4c22d83ba5c01c9b678c56352cb03504827ad52e309ae391f727e4ec869b61 |
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font_02_sfnt_off00010b0a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B0A | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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